Hot runner valve pin:

1. Material: SKH51, SKD61 (can be custom-made according to customer requirements).

2. Hardness: HRC59-61 (SKH51), HRC50-55 (SKD61).

3. Tolerance: ±0.001 mm

4. Surface treatments: Titanium nitride (TiCN) coating, chromium nitride coating, hard chrome plating, aluminum titanium nitride coating, nitriding, and nanoscale coatings (nARo2), among others. Surface hardness exceeds HV2400 (coatings available upon customer request).

5. Concentricity: 0.002mm

6. Precision: The precision of the effective mating area for the valve needle is within 0.002 mm, and valve needles of the same specification can be interchangeably matched with their corresponding valve sleeves.

7. Common valve needle size machining range: Diameter 2–13.5 mm; length 100–1500 mm.
Brand
Ruiying
Product Alias
Valve needle
Standard
Industry Standards
Injection molding material
PP
Is it a dedicated supply source for cross-border exports?
Is
Head material
SKH51
Coat material
SKH51
Type
Mold Hot Runner System
Heated Nozzle Body Material
S136
Applicable Mold Type
Plastic mold
Item Number
4.0-177
Surface Treatment
Chromium Nitride
Entity Processing
High-temperature tempering + cryogenic heat treatment

Direct factory sales: Customized processing of PET mold preforms, including hot runner valve pins and preform elbows—based on your own designs or samples.

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